扩散速率

CaO脱硫化学反应速率与气体扩散速率对比

Comparison of kinetic reaction rate and diffusion rate during dry FGD reaction with CaO particles

在反应区中，C原子的扩散速率大于Si原子。（3）三维网络SiC/20Cr界面发生固相反应受Fe在反应区中的扩散所控制。

The diffusion rate of C atoms was bigger than Si atoms . ( 3 ) The solid state reaction between 3D-Meshy SiC / 20Cr interface was under the control of Fe diffusion .

皮肤温度随着周围环境温度升高，香水中酒精的扩散速率也会加快。

The rate of diffusion of alcohol in a fragrance increases as the skin warms to your surrounding temperatures .

图3.1不同扩散速率时，单晶可混容试样A和B的相互扩散。

Fig.3.1 interdiffusion of the miscible unit crystals A and B at different diffusivities .

研究结果表明，润滑剂能有效地降低氧气扩散速率及合金元素如Al、Fe、V的扩散速率。

The performance of lubricant can be obviously to reduce the diffusion of oxidizing atmosphere and alloying elements , such as Al , Fe , V.

应用弹塑性断裂力学和△J参数，用da／dN＝C（△J）n计算裂纹的扩散速率。

The crack growth rates were calculated on the basis of elasto-plastic fracture mechanics using the formula da / dN C (△ J ) n.

单双组分动力学研究结果表明BSA的传质扩散速率大于Hb。

Dynamic results of both single and binary components showed BSA had a higher diffusivity inside gel pores than Hb .

催化剂扩散速率1h平均为0.82m/s，与风、温、湍流有关；

And diffusive rate is connected with wind , temperature and turbulence , 1 hour 's average is 0.82 m / s.

Ni颗粒在阳极中粗化的驱动力来源于Ni颗粒半径不同导致的扩散速率的差异，金属原子面扩散是主要的扩散机制。

And the difference in metal particle diameter leading to diffusion is the driving force for such process . Surface diffusion of metal atoms on the particle surface is the dominant diffusion mechanism .

土木工程FRP复合材料的耐久性能在很大程度上取决于水分子的扩散速率与吸收量。

While the durability of FRP composites during the service life in civil engineering depends on the diffusion of water molecules and water uptake to a great extent .

Fe和Cr在偏聚时，Fe原子的扩散速率比Cr原子快。

When the segregation of iron and chromium atoms occurs during the oxidation of Zr ( Fe , Cr ) 2 metallic compound , the diffusion rate of iron atoms is faster than that of chromium atoms .

但发泡温度过低时，超临界CO2在PS熔体中的扩散速率较低，最终制品的泡孔密度小，气泡分布也不均匀。

However , the dispersion speed of supercritical carbon dioxide in PS melt was low at lower temperature . So the cell density of final produce was small and cell distribution was not homogeneous .

Ag/Ni在压电陶瓷中的扩散速率比Ag/Pd的慢，比Ag/Cu、Ag快，是其抗迁移能力的本质。

Diffuse speed of Ag / Ni in piezoelectricity ceramics was slower than Ag / Pd , faster than Ag / Cu - . Ag , and this is the essence that inhibits transfer ability .

但由于Y-TZP陶瓷的晶界扩散速率大，使Y-TZP/SiC的抗蠕变性能仍较差。

But the creep resistance of Y-TZP / SiC is still poor due to the grain boundary diffusion process of Y-TZP .

其作用速率在a－Si界面为反应速率限制，而在与Mo交界面则为扩散速率限制。

The reaction is diffusion rate limit near the interface of Mo / a Si : Mo alloy , but at the interface of a Si : Mo / a Si the reaction is reaction rate limit .

采用吸附、包埋、共价交联等方法固定化超氧化物歧化酶（SOD）所得固定化酶活力回收都不高，表明酶的催化反应速率受超氧阴离子自由基（O2~-）扩散速率的控制。

Immobilized SOD were obtained by absorption , entrapment and covalent cross-linking , and all the immobilized enzyme activities were low . It appears that reaction rate of the copper and zinc containing superoxide dismutase with superoxide anion is near the limit of diffusion control .

对稀土作用机制的初步分析结果表明：稀土添加减少了Al2O3中残余的羟基，因而降低了晶化过程中铝离子的扩散速率，从而减少了γAl2O3的晶化速率；

The hydroxyl remnant in γ Al 2O 3 is reduced by rare earth addition , so the transporting velocity of Al 3 + is slowed down , as a result , the crystallization of amorphous Al 2O 3 is delayed .

本文用金相、扫描电镜、X射线衍射和电子探针方法研究了改良青铜法制作的Nb3Sn化合物层生成厚度、扩散速率、晶粒和结构。

The thickness , diffusion rate , grain size and structure of the Nb_3Sn layer prepared by modified bronze process have been examined by means of metallog - raphy , SEM , X-ray diffraction and EMPA .

锂离子电池技术在EV和HEV中应用所面临的主要问题是快速充放电和安全性问题，限制其快速充放电性能的主要原因是锂离子在固相中扩散速率较低。

The main problems for lithium-ion battery technology applied in EV and HEV are the rapid charge-discharge ability and security issues , while the main reason for the restriction of its rapid charge-discharge performance is the low lithium-ion diffusion rate in the solid phase .

而PPC对气体的阻隔作用，可以减缓二氧化碳的扩散速率，增强泡孔成核作用，并延长PLA/PPC样品在釜压发泡过程中的转移时间。

The gas barrier property was improved through introducing PPC , which could slow down the diffusion rate of CO2 , thus enhancing the nucleation of PLA foams and extending the transfer time of PLA / PPC sample during the foaming process .

温度1600K以上时，Knudsen扩散速率比燃烧速率小1个数量级，孔径38-50nm以下内表面上碳的氧化速度受扩散控制。

When the temperature is more than 1600 K , KDR is less one order than CR , controlled by Knudsen diffusion for the pores diameter less than 38-50 nm .

当碱液中氢氧化钠浓度为2M或更高时，其表面扩散速率与浓度的增加无关，这种现象与菲克（Fick）扩散原理是一致的，该原理可用于解释化学去皮过程中所产生的一些现象。

While NaOH concentration of the lye is 2M or more , the surface diffusion rate don 't vary with the concentration increasing , It 's in accordance with Fick diffusion principle . This can be used to explain some phenomena in chemical decortication .

试验结果表明：（1）TiO2通过Ti4+置换Cr3+，抑制了高挥发性铬离子的形成，产生了铬离子空位及引起晶格畸变，增大了Cr3+扩散速率，从而促进了Cr2O3材料烧结。

The results showed that : ( 1 ) TiO2 promoted the sintering of chromic oxide by Ti4 + replacing Cr3 + , which restrained the formation of high volatility chrome cation through forming chrome cation vacancy , and therefore caused lattice distortion and increased Cr3 + diffusion rate .

温度小于1200K时，燃烧速率比Knudsen扩散速率小1-5个数量级，扩散孔径小于15-28nm，反应主要在内外表面进行；

When the temperature is less than 1200 K , oxygen molecules can pass through the pores of diameters less than 15-28 nm , Knudsen diffusion rate ( KDR ) is more from one to five orders than CR , and burning occurs on the internal surface ;

蔗糖晶体表面膜中杂质扩散速率的研究

Study of Rates of Impurities Diffusion from Films on Sugar Crystals

降低元素在镁基体中的扩散速率；

Falling the diffuse velocity of element in the magnesium body ;

紫外分光光度法测定控释尿素的透膜扩散速率

Rate of Controlled-Release Urea Pervasion through Membrane Determined by Ultraviolet Spectrophotometry

电容法确定涂层中液体的扩散速率

Determination of Diffusion Rate of Liquid in Coating by Electric Capacity Method

扩散速率对温度的敏感性最小。

The diffusion rate was the most insensitive to temperature .

气相扩散速率对溶菌酶晶体生长的影响

The Effect of Vapor Diffusion Rate on Lysozyme Crystal Growth